Improvement in steam-engines



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EARL'E C. BACON, OF New YORK, N. Y.

Letters Patent No.'84,249, dated November 24, 1868.

IMPROVEMENT IN 4STE.AMI-IE!N'G-INIIEIS.

The Schedule referred to :ln these Letters Patent and making part of the same.

To all persons vto whom these presents shall come Be it known that I, EARLE C. BACON, of the city, county, and State of New York, have invented a certain new and-useful Improvement in Steam-Engines and that the following description, taken in connectior with the accompanying plate of drawings, forms a fuh and complete specification of the same, wherein I have set forth the nature and principles of my said improvement, whereby my invention may be distinguished from all others of a similar class, together with such parts as Y I claim, and desire to have secured to me by Letters Patent.

The present invention relates to that class of steamengines known as, and commonly called, trunk-en- `gines and the invention consists in making the trunk ment in steam-engines?7 `is` illustrated- Figure l being an end elevation of an engine constructed according thereto;

Figure 2, a plan view of the piston-cylinder, showing the open and outer end of the hollow trunk; and Figure 3, a central vertical section, taken in the plane ofthelinezvaggl.'v

A, in the drawings, represents a piston-cylinder of a steam-engine, to which B is the piston-head, having rod C. f Y

This rod C is hinged to the piston-rodB, and from it is extended 4through the hollowtrunk D, out of the cylinderA, to the crank-arm E, on which itis hung in any suitable manner. rlhe hollow trunk D is of a length sufficient to extend through the entire length of the cylinder, and out of the same, at its head, F, when the piston is at the extreme length of its stroke at the opposite head, G', and in transverse section is made oblong, as shown in iig. 2, more particularly for the purpose of exposing greater surface or area of the piston-head to the steam-pressure, while at the sametime the piston-rod is accommodated in its-swinging motion, as it is carried from one side to the other by the revolution of the crank-arm.

Having thus described my invention,

What I claim, and desire to have secured to me by Letters Patent, is-

The construction of theoblong hollow trunk D, and its arrangement, with reference to the piston-head B,

cylinder A, and cylinder-head F, substantially as de! scribed.

The above specification of my invention signed by ine, this day of February, A. D. 1868.

EARLE C. BACON.

Witnesses ALBERT W. BROWN, H. L. WATTENBERG. 

